Bladder Snail
   HOME



picture info

Bladder Snail
''Physella acuta'' is a species of small, left-handed or sinistral, air-breathing freshwater snail, an aquatic gastropod mollusk in the family Physidae. Common names include European physa, tadpole snail, bladder snail, and acute bladder snail. Etymology The name ''Physella'' means "little bladder", from Greek ''physa'', and the diminuative ending "-ella". This is in reference to the genus ''Physa'', which ''P. acuta'' has, at times, been placed in. ''Acuta'' is a Latin word meaning sharp. Shell description Snails in the family Physidae have shells that are sinistral, which means that if the shell is held with the aperture facing the observer and the spire pointing up, then the aperture is on the left-hand side. The shells of ''Physella'' species have a long and large aperture, a pointed spire, and no operculum. The shells are thin and corneous and rather transparent. History It was once thought that the indigenous distribution of ''Physella acuta'' is Mediterranean.Glöer ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  




Jacques Philippe Raymond Draparnaud
Jacques Philippe Raymond Draparnaud (3 June 1772, Montpellier – 2 February 1804) was a French naturalist, malacologist and botanist. He is considered the father of malacology in France. He was professor of medicine and pathology at the Faculté de Médecine de Montpellier. Draparnaud understood the breadth of the fauna he studied, as can be seen in a quote from him, in ''Histoire Naturelle des Mollusques'', published in 1805:Au reste, quoique j'aie décrit pour la France seule un bien plus grand nombre d'espèces que Muller et Schroeter n'ent ont fait connoître pour l'Europe entière, et trois fois autant que Geoffroy et Poiret n'en ont observé dans les environs de Paris, je suis convaincu qu'il reste encore en ce genre bien des découvertes à faire. Translation: As for the remainder, even though I have described for France a greater number of species than Müller and Schroeter made known for the whole of Europe, and three times as many as Geoffroy and Poiret observed aro ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Pripyat River
The Pripyat or Prypiat is a river in Eastern Europe. The river, which is approximately long, flows east through Ukraine, Belarus, and into Ukraine again, before draining into the Dnieper at Kyiv Reservoir. Name etymology Max Vasmer notes in his etymological dictionary that the historical name of the river mentioned in the earliest East Slavic document, the '' Primary Chronicle'', is ''Pripet (), and cites the opinion of other linguists that the name meant "tributary", comparing with Greek and Latin roots. He also rejects some opinions which were improperly based on the stem ''-pjat'', rather than original . The name may also derive from the local word ''pripech'' used for a river with sandy banks. Geography The Pripyat begins in the Volhynian Upland, between the villages of and in Volyn Oblast, Ukraine. 204 km downstream, it crosses the border of Belarus, where it travels 500 km through Polesia, Europe's largest wilderness, within which lie the vast sandy wetl ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

List Of Non-marine Molluscs Of The Netherlands
This list of non-marine molluscs of the Netherlands is a list of all molluscs other than the marine (Marine (ocean), salt water) species that live in the Netherlands. This list comprises land snails and slugs, freshwater snails and freshwater clams and mussels. There are 197 non-marine Mollusca, mollusc species living in natural habitats in the Netherlands. There are 169 Gastropoda, gastropod (snail and slug) species (52 freshwater and 117 land species), and 28 freshwater Bivalvia, bivalve (clams and mussel) species living in the wild. As for introduced species, there are 23 introduced species, introduced gastropod species (2 freshwater and 21 land species plus ''Candidula unifasciata'' as possibly non-indigenous one), and 4 bivalve species, living in natural habitats in the Netherlands. A total of 5 freshwater non-indigenous species live in natural habitats. Summary table of number of species There are 4 locally extinct species in the Netherlands: the marine gastropod ''Risso ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

List Of Non-marine Molluscs Of Germany
This list of non-marine molluscs of Germany is a list of the molluscs that live in Germany, excluding the marine (Seawater, saltwater) species. In other words, it includes the land snails and slugs, the freshwater snails and the freshwater clams and mussels. There are about 349 species of non-marine Mollusca, mollusc living in the wild in Germany. Of these, 70 species are freshwater gastropods and 39 species are Bivalvia, bivalves. There are 45 introduced species, introduced gastropod species (6 freshwater and 36 land species) and 3 introduced bivalve species living in the wild in Germany. ;Summary table of number of species Some non-indigenous species only occurring greenhouses in Germany are noted separately, below the list. The main source for the list of freshwater species is the book Süsswassermollusken by Glöer & Meier-Brook. Freshwater gastropods Neritidae * ''Theodoxus danubialis'' (C. Pfeiffer, 1828) * ''Theodoxus fluviatilis'' (Linnaeus, 1758) – and ''Theodox ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

List Of Non-marine Molluscs Of Slovakia
Slovakia is a land-locked country, and therefore the molluscs of Slovakia are all land and freshwater species. There are 247 Horsák M., Juřičková L., Beran L., Čejka T. & Dvořák L. (2010). "Komentovaný seznam měkkýšů zjištěných ve volné přírodě České a Slovenské republiky. [Annotated list of mollusc species recorded outdoors in the Czech and Slovak Republics]". ''Malacologica Bohemoslovaca'', Suppl. 1: 1-37PDF species of Mollusca, molluscs living in the wild in Slovakia. In addition there are 9 gastropod species living only in greenhouses. There are a total of 219 species of Gastropoda, gastropods, which breaks down to 51 species of freshwater gastropods, and 168 species of land gastropods, plus 28 species of Bivalvia, bivalves living in the wild. There are 8 non-indigenous gastropod species (3 freshwater and 5 land species) and 3 species of bivalves in the wild in Slovakia. This is a total of 6 freshwater non-indigenous species of wild molluscs. ;Summary ta ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Malacologica Bohemoslovaca
''Malacologica Bohemoslovaca'' is a peer-reviewed open access scientific journal covering all aspects of malacology. It was published by the Slovak Academy of Sciences since 2005. It is published by the Department of Botany and Zoology, Faculty of Science, Masaryk University since 2021. The editor-in-chief is Lucie Juřičková (Charles University in Prague). Articles are published in Czech, Slovak or English, with an abstract in English. The journal is abstracted and indexed in The Zoological Record ''The Zoological Record'' (''ZR'') is an electronic index of zoological literature that also serves as the unofficial register of scientific names in zoology. It was started as a print publication in 1864 by the Zoological Society of London, .... References External links * Malacology journals Multilingual journals Academic journals established in 2002 Creative Commons Attribution-licensed journals Academic journals published by learned and professional societies ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

List Of Non-marine Molluscs Of The Czech Republic
This is a list of the non-marine molluscs of the Czech Republic. That country is land-locked and therefore it has no marine molluscs, only land and freshwater species, including snails, slugs, freshwater clams and freshwater mussels. There are 247 species of Mollusca, molluscs living in the wild in the Czech Republic. In addition there are at least 11 gastropod species surviving in greenhouses. There are 219 Gastropoda, gastropod species (50 freshwater and 169 land species) and 28 Bivalvia, bivalve species living in the wild. There are also 11 Introduced species, introduced gastropod species (5 freshwater and 7 land species) and 4 bivalve species living in the wild in the Czech Republic. This is a total of 9 freshwater non-indigenous species living in natural habitats. Summary table of number of species There are 2 endemic (ecology), endemic species of molluscs in the Czech Republic: *''Alzoniella slovenica'' in Moravia (and in Slovakia too) *''Bulgarica nitidosa'' in Bohemia. ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  




Water Framework Directive
The Water Framework Directive (WFD; 2000/60/EC) is an EU directive to establish a framework for the protection of all water bodies (including marine waters up to one nautical mile from shore) by 2015. The WFD establishes a programme and timetable for Member States to set up river basin management plans by 2009. The Directive's aim is for all water bodies in EU member states to achieve "good status", with 47% of EU water bodies covered by the Directive failing this standard. Objectives of the Directive The Directive aims for "good status" for all ground and surface waters (rivers, lakes, transitional waters, and coastal waters) in the EU. The purpose of the WFD is to prevent deterioration of the water bodies, enhance status of aquatic ecosystems, reduce pollution from priority substances, promote sustainable water use and contribute to mitigate the effects of floods and droughts. The ecological and chemical status of surface waters are assessed according to the following c ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Native Species
In biogeography, a native species is indigenous to a given region or ecosystem if its presence in that region is the result of only local natural evolution (though often popularised as "with no human intervention") during history. The term is equivalent to the concept of indigenous or autochthonous species. A wild organism (as opposed to a domestication, domesticated organism) is known as an introduced species within the regions where it was Human impact on the environment#anthropogenic, anthropogenically introduced. If an introduced species causes substantial ecological, environmental, and/or economic damage, it may be regarded more specifically as an invasive species. A native species in a location is not necessarily also endemism, endemic to that location. Endemic species are ''exclusively'' found in a particular place. A native species may occur in areas other than the one under consideration. The terms endemic and native also do not imply that an organism necessarily first o ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

River Thames
The River Thames ( ), known alternatively in parts as the The Isis, River Isis, is a river that flows through southern England including London. At , it is the longest river entirely in England and the Longest rivers of the United Kingdom, second-longest in the United Kingdom, after the River Severn. The river rises at Thames Head in Gloucestershire and flows into the North Sea near Tilbury, Essex and Gravesend, Kent, via the Thames Estuary. From the west, it flows through Oxford (where it is sometimes called the Isis), Reading, Berkshire, Reading, Henley-on-Thames and Windsor, Berkshire, Windsor. The Thames also drains the whole of Greater London. The lower Reach (geography), reaches of the river are called the Tideway, derived from its long Tidal river, tidal reach up to Teddington Lock. Its tidal section includes most of its London stretch and has a rise and fall of . From Oxford to the estuary, the Thames drops by . Running through some of the drier parts of mainland Bri ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

River Severn
The River Severn (, ), at long, is the longest river in Great Britain. It is also the river with the most voluminous flow of water by far in all of England and Wales, with an average flow rate of at Apperley, Gloucestershire. It rises in the Cambrian Mountains in mid Wales, at an altitude of , on the Plynlimon massif, which lies close to the Ceredigion/Powys border near Llanidloes. The river then flows through Shropshire, Worcestershire and Gloucestershire. The county towns of Shrewsbury, Worcester, England, Worcester and Gloucester lie on its course. The Severn's major tributaries are the River Vyrnwy, Vyrnwy, the River Tern, Tern, the River Teme, Teme, the Warwickshire Avon, and the River Stour, Worcestershire, Worcestershire Stour. By convention, the River Severn is usually considered to end, and the Severn Estuary to begin, after the Prince of Wales Bridge, between Severn Beach in South Gloucestershire and Sudbrook, Monmouthshire. The total area of the estuary's draina ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]